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Why are there two integer answers for square roots but only one integer answer for cubed roots?
Wiki User
∙ 9y ago
When (if) you learn more advanced mathematics you will find that there are, in fact 3 cube roots for any non-zero number (in the complex field). In general, there are n nth roots (de Moivre's theorem). However, only one of the cube roots can be a real number, the other two are complex numbers.
The reason is that the product of a pair of negative numbers is positive. As a result both x and -x are square roots of x^2. But the product of three negative numbers is itself negative, so for cube roots the signs match up.
Wiki User
∙ 9y ago
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What is the inverse operation of exponential functions?
Square roots? for example, 5 to the 2 is the square root of 5. 6 to the 3 is the cubed root of 6.
What is the square root integers of 200?
The square root of 200 is not an integer (whole number). In rounded form, the two square roots of 200 are positive and negative 14.14214... .
Is the square root of 95 rational irrational or not a real number?
Since 95 is positive, its square root is real. Only negative numbers have non-real square roots. That leaves the question of whether it is rational or irrational. An integer's square root can only be rational if it is itself an integer. But 95 is not a perfect square, so it's square root is not an integer. Therefore the square root is irrational.
Which is a real number that is not a rational number?
Actually there are more irrational numbers than rational numbers. Most square roots, cubic roots, etc. are irrational (not rational). For example, the square of any positive integer is either an integer or an irrational number. The numbers e and pi are both irrational. Most expressions that involve those numbers are also irrational.
What two integers lie between the square root of negative 55?
The square roots of negative 55 are the imaginary numbers -7.4162*i and 7.4162*i where i is the square root of -1. There can be only one integer between any two imaginary numbers and that is 0.
What has an integer as its square roots?
a perfect square
What are the 2 main types of roots?
The two main roots in math are square roots and cubed roots. The square root is what number squared is your original number. For example the square root of 25 is 5 because 5 x 5 is 25. For cubed roots it is what numbered cubed is your original number.
What do you call a number with integer square roots?
a perfect square
What has integer's as square roots?
perfect squares
Are square roots of positive integers rational?
Only if the integer is a perfect square.
How are square roots and perfect squares related?
The square root of every perfect square is an integer. However, there are also square roots of numbers that are not perfect squares.
Can integers be square roots?
Of course they can. Every integer greater than zero is a square root.
What is the root of a perfect square?
The root of a perfect square will be an integer, but will be both the positive and negative values. For instance, the square root of 4 is plus or minus 2 (±2), as both integral answers are valid. The positive real root is the answer that many books give. It is sometimes called the primary root. But the key point is both roots are valid.
How many cubed roots are there in number 27?
There are 3 cube roots of 27. There are 2 square roots of 27 ( or any real number ). There are 4 fourth roots of 27 and so on:)
Is the square root of 100 considered an integer?
The square roots of 100 are +10 and -10 . They're both integers.
Is the number 120 a square number?
120 is not the square of an integer, its square roots, rounded to two decimal places, are ±10.95.
Is the square root of 170 a rational number?
No. The only square roots of integers that are rational numbers only when the integer is a perfect square.
